<html>
<head>
<style>
input
{
position:relative;
height:5%;
width:25%;
border:2px solid;
background-color:#219869;
border-radius:10px;
font-weight:bold;
text-align:center;
font-size:19px;
}
</style>
</head>
<body bgcolor='#b5eff5'>
<form method="POST" action='criminal_search.php'>
<select name='s1'>
<option value="ID">ID</option>
<option value="Name">Name</option>
<option value="Phone Number">Phone Number</option>
<option value="Date">Date</option>
</select>
<input type=text name='i1' id='i1'></input>
<input type=submit value=submit name="submit"></input>
</form>
</body>
<?php
if(isset($_POST['submit']))
{
$dbname = "policainformation";
$conn = mysqli_connect('localhost','root','',$dbname);
if (!$conn)
{
die("Connection failed: " . mysqli_connect_error());
}
else
{
$option1=$_POST['s1'];
if($option1=="ID")
{
$option1="report_id";
}
else
if($option1=="Name")
{
$option1="reporter_name";
}
else
if($option1=="Phone Number")
{
$option1="reporter_ph";
}
else
if($option1=="Date")
{
$option1="report_date";
}
$option2=$_POST['i1'];
if($option1!="Name")
$sql="select * from criminal where $option1 in ($option2)";
else
$sql="select * from criminal where $option1 in '$option2'";
$result=mysqli_query($conn, $sql) or die("<script type='text/javascript'>alert('No Records Found!')</script>");
if($result)
if (mysqli_num_rows($result) > 0)
{
while($row = mysqli_fetch_assoc($result))
{
echo $row["report_id"].$row["reporter_name"].$row["reporter_ph"].$row["reporter_email"].$row["reporter_address"].$row["report_date"].$row["suspect_name"].$row["reason_of_report"].$row["proof"]."<br>";
}
}
else
{
echo "<script type='text/javascript'>alert('No Records Found!')</script>";
}
}
}
?>
</html>
這是我的HTML代碼。我正在嘗試檢索值並在網頁上顯示。除了NAME選項,一切正常。當我用這個名字進行搜索時,即當我用PHP代碼中的名稱進行查詢時,它不起作用。它迴應沒有找到記錄。請幫幫我。我也把表結構爲更好的參考。數據庫錯誤名稱未提取
https://gyazo.com/1c69aad3491c00d876128e198e39f176
https://screenshots.firefox.com/psi7MgWUjapXavID/localhost
'IN'功能需要括號,你的第二個具有單引號。你的目標是什麼if/else? – Scuzzy
if else是否用於執行特定查詢。如果它是名稱,那麼sql必須爲文本引用單引號,如果是數字,則不必使用單引號。因此給出了其他條件。但它給其他部分帶來了問題。 –
@Scuzzy即使我把括號 –